CVE-2018-18865: The Royal browser extensions TS before 4.3.60728 (Release Date 2018-07-28) and TSX before 3.3.1 (Release Date

Q: How do I fix CVE-2018-18865?

royal ts: upgrade to newer than 4.3.60728; royal tsx: upgrade to newer than 3.3.1. Exact commands for each OS are on this page.

Q: Is CVE-2018-18865 being exploited?

CVE-2018-18865 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-18865 affect?

CVE-2018-18865 affects royal ts, royal tsx. Severity is high (CVSS 8.1). The Royal browser extensions TS before 4.3.60728 (Release Date 2018-07-28) and TSX before 3.3.1 (Release Date 2018-09-13) allow Credentials Disclosure.

Q: How urgent is CVE-2018-18865?

Priority 62/100. High severity; EPSS top 5%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 8.1REMOTEUPGRADEUPGRADE

CVE-2018-18865 is a high-severity flaw (CVSS 8.1) affecting royal ts, royal tsx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Royal browser extensions TS before 4.3.60728 (Release Date 2018-07-28) and TSX before 3.3.1 (Release Date 2018-09-13) allow Credentials Disclosure.

Why this priority

High severity
EPSS top 5%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	8.0% (top 5%)
CISA exploited list	No
Weakness	CWE-200
Published	2018-11-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: royalapplications

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-11-20 19:29 UTCPublished CVE record published
2026-06-17 01:48 UTCUpdated Record last modified

royalapplications royal ts UPGRADE

Affected: <= 4.3.60728

Fixed in: newer than 4.3.60728

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy royal-ts || rpm -q royal-ts || royal-ts --version

2. UPGRADE to newer than 4.3.60728 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade royal-ts

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade royal-ts

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

royalapplications royal tsx UPGRADE

Affected: <= 3.3.1

Fixed in: newer than 3.3.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy royal-tsx || rpm -q royal-tsx || royal-tsx --version

2. UPGRADE to newer than 3.3.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade royal-tsx

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade royal-tsx

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Royal TS/X - Information Disclosure

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-18865?

royal ts: upgrade to newer than 4.3.60728; royal tsx: upgrade to newer than 3.3.1. Exact commands for each OS are on this page.

Is CVE-2018-18865 being exploited?

CVE-2018-18865 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-18865 affect?

CVE-2018-18865 affects royal ts, royal tsx. Severity is high (CVSS 8.1). The Royal browser extensions TS before 4.3.60728 (Release Date 2018-07-28) and TSX before 3.3.1 (Release Date 2018-09-13) allow Credentials Disclosure.

How urgent is CVE-2018-18865?

Priority 62/100. High severity; EPSS top 5%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-13872 HIGH 8.8 UPGRADE Royal TS before 5 has a 0.0.0.0 listener, which makes it easier for attackers to bypass tunnel authentication

References

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